EP3949019A1 - Radiateur pour antenne et antenne de station de base - Google Patents

Radiateur pour antenne et antenne de station de base

Info

Publication number
EP3949019A1
EP3949019A1 EP20783335.1A EP20783335A EP3949019A1 EP 3949019 A1 EP3949019 A1 EP 3949019A1 EP 20783335 A EP20783335 A EP 20783335A EP 3949019 A1 EP3949019 A1 EP 3949019A1
Authority
EP
European Patent Office
Prior art keywords
arm
radiator
segment
pcb
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20783335.1A
Other languages
German (de)
English (en)
Other versions
EP3949019A4 (fr
Inventor
Bo Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commscope Technologies LLC
Original Assignee
Commscope Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commscope Technologies LLC filed Critical Commscope Technologies LLC
Publication of EP3949019A1 publication Critical patent/EP3949019A1/fr
Publication of EP3949019A4 publication Critical patent/EP3949019A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/22—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Definitions

  • the present invention relates generally to cellular communications systems and, more particularly, to radiators for base station antennas.
  • MIMO antenna systems are a core technology for next-generation mobile communications.
  • MIMO antenna systems use multiple arrays of radiators for transmission and/or reception in order to improve communication quality.
  • the spacing between radiators of adjacent arrays is typically decreased, which results in increased coupling interference between the arrays.
  • the increased coupling interference degrades the isolation performance of the radiators, which may negatively affect the beam forming (BF) of the antennas.
  • a radiator for an antenna comprises a feed board having an electrically conductive segment, a radiating arm and a PCB coupling arm having an printed electrically conductive segment, wherein the radiating arm is configured as a metal radiating arm, and the radiating arm includes a first arm segment extending in a first direction, and a second arm segment extending in a second direction and starting from an outer side region of the first arm segment, wherein the second direction is different from the first direction, wherein the radiating arm is supported on the PCB coupling arm.
  • the dimension of horizontal extension of the radiator is advantageously reduced while maintaining the effective electrical length of the radiating arm, thereby enlarging the spacing between the adjacent radiators and improving the performance of the radiator in a cost-effective manner.
  • the feed board feeds the radiating arm by means of a capacitive coupling.
  • At least a portion of the first arm segment of the radiating arm is disposed on the PCB coupling arm, and the capacitive coupling is formed between the at least a portion of the first arm segment of the radiating arm and the electrically conductive segment of the PCB coupling arm.
  • the feed board is configured as a PCB feed board, and the electrically conductive segment of the feed board is configured as a printed electrically conductive segment.
  • the electrically conductive segment of the PCB coupling arm is electrically connected with the electrically conductive segment of the feed board.
  • the PCB coupling arm has an engaging groove
  • the feed board comprises a tab having the electrically conductive segment of the feed board, and the tab is configured to be inserted through the engaging groove and to be electrically connected with the electrically conductive segment of the PCB coupling arm.
  • a dielectric layer is provided between the at least a portion of the first arm segment of the radiating arm and the electrically conductive segment of the PCB coupling arm.
  • the dielectric layer comprises a solder mask layer on a surface of the PCB coupling arm.
  • the dielectric layer comprises air and/or a spacer.
  • the area of the PCB coupling arm is smaller than the area of the radiating arm.
  • the area of the PCB coupling arm is smaller than the area of the first arm segment of the radiating arm.
  • the upper limit value of the ratio of the area of the PCB coupling arm to the area of the radiating arm is selected from the following values: 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, or 0.1.
  • the radiator is mounted on a reflector
  • the feed board extends forward from the reflector and engages with the PCB coupling arm
  • the PCB coupling arm is supported on the feed board in an orientation substantially parallel to the reflector
  • the first arm segment of the radiating arm is supported on the PCB coupling arm in an orientation substantially parallel to the reflector, and the second arm segment of the radiating arm extends from the outer side region of the first arm segment in a direction that is away from the reflector.
  • both side edges of the first arm segment are each provided with a second arm segment that extends away from the reflector.
  • the second direction intersects the first direction.
  • the second direction and the first direction form an angle between 80 degrees and 100 degrees.
  • the upper limit value of the ratio of the area of the first arm segment to the area of the radiating arm is selected from the following values: 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, or 0.1.
  • the radiating arm is fixed to the PCB coupling arm by means of a fastener and/or an adhesive layer.
  • the first arm segment and the second arm segment of the radiating arm are constructed as a monolithic structure.
  • a radiator for an antenna comprises a feed board and a radiating arm, the radiating arm is configured as a metal radiating arm, and the metal radiating arm includes a first arm segment extending in a first direction, and a second arm segment extending in a second direction and starting from an outer side region of the first arm segment, wherein the second direction is different from the first direction, wherein the radiator further includes a radiating arm supporting plate, that is made of dielectric material or comprises dielectric material, for supporting the radiating arm, wherein the feed board feeds the metal radiating arm by means of a capacitive coupling.
  • the radiating arm includes a coupling portion
  • the feed board includes a coupling portion having an electrically conductive segment
  • the capacitive coupling is formed between the coupling portion of the radiating arm and the coupling portion of the feed board so as to feed the radiating arm.
  • the radiator is mounted on a reflector, the feed board extends forward from the reflector, and the radiating arm supporting plate is supported on the feed board in an orientation substantially parallel to the reflector.
  • the first arm segment of the radiating arm is supported on the radiating arm supporting plate in an orientation substantially parallel to the reflector, and the second arm segment of the radiating arm extends from an outer side region of the first arm segment in a direction that is away from the reflector.
  • the radiating arm supporting plate has a slot, and the coupling portion of the feed board is inserted through the slot such that the coupling portion of the feed board and the coupling portion of the radiating arm are opposite to each other.
  • the feed board includes a snap portion formed only of dielectric material, the snap portion being inserted through a slot in the radiating arm supporting plate and a slot in the radiating arm to be snapped onto the radiating arm.
  • each of the radiating arms comprises one or two coupling portions, which extend away from the reflector from an inner end of the radiating arm.
  • the coupling portion of the feed board is disposed between the two coupling portions of the radiating arm, the coupling portion of the feed board comprising electrically conductive segments on its two major surfaces.
  • the coupling portion of the feed board comprises printed electrically conductive segments on its two major surfaces, and the printed electrically conductive segments are provided with at least one electrically conductive element that extend through the coupling portion of the feed board to electrically connect the printed electrically conductive segments on the two major surfaces.
  • a dielectric layer is provided between the coupling portion of the radiating arm and the coupling portion of the feed board.
  • the dielectric layer comprises a solder mask layer on a surface of the coupling portion of the feed board.
  • the dielectric layer comprises air and/or a spacer.
  • the first arm segment and the second arm segment of the radiating arm are constructed as a monolithic structure.
  • a radiator for an antenna comprises a PCB feed board, a PCB coupling arm and a metal radiating arm, wherein the metal radiating arm includes a first arm segment extending in a first direction, and a second arm segment extending from an outer side region of the first arm segment in a second direction different from the first direction, wherein the PCB feed board has a printed electrically conductive segment, and the PCB coupling arm has a printed electrically conductive segment that is electrically connected with the electrically conductive segment of the PCB feed board, wherein the first arm segment of the metal radiating arm is partially or completely supported on the PCB coupling arm, and at least a portion of the first arm segment of the metal radiating arm and the electrically conductive segment of the PCB coupling arm are opposite to each other and thus a capacitive coupling is formed
  • the PCB feed board feeds the metal radiating arm by means of the capacitive coupling.
  • the PCB coupling arm has an engaging groove
  • the PCB feed board comprises a tab having the electrically conductive segment of the PCB feed board, and the tab configured to be is inserted through the engaging groove and to be electrically connected with the electrically conductive segment of the PCB coupling arm.
  • a dielectric layer is provided between the at least a portion of the first arm segment of the radiating arm and the electrically conductive segment of the PCB coupling arm, the dielectric layer including a solder mask layer on a surface of the PCB coupling arm.
  • the radiator is mounted on a reflector
  • the PCB feed board extends forward from the reflector and engages with the PCB coupling arm
  • the PCB coupling arm is supported on the PCB feed board in an orientation substantially parallel to the reflector
  • the first arm segment of the metal radiating arm is supported on the PCB coupling arm in an orientation substantially parallel to the reflector
  • the second arm segment of the metal radiating arm extends from the outer side region of the first arm segment in a direction that is away from the reflector.
  • a radiator for an antenna comprises a PCB feed board, a metal radiating arm and a radiating arm supporting plate made of dielectric material or comprising dielectric material, wherein the metal radiating arm includes a first arm segment extending in a first direction, and a second arm segment extending from an outer side region of the first arm segment in a second direction different from the first direction, wherein the first arm segment of the metal radiating arm is partially or completely supported on the radiating arm supporting plate, wherein the metal radiating arm includes a coupling portion on its inner end region, the PCB feed board includes on its upper inner end region a coupling portion having a printed electrically conductive segment, and the coupling portion of the radiating arm and the coupling portion of the feed board are opposite to each other and thus a capacitive coupling is formed therebetween, and the PCB feed board feeds the metal radiating arm by means of the capacitive coupling.
  • the metal radiating arm supporting plate has a slot, and the coupling portion of the PCB feed board is inserted through the slot so that the coupling portion of the PCB feed board and the coupling portion of the metal radiating arm are opposite to each other.
  • a dielectric layer is provided between the coupling portion of the metal radiating arm and the coupling portion of the PCB feed board, the dielectric layer including a solder mask layer on a surface of the coupling portion of the PCB feed board.
  • the radiator is mounted on a reflector
  • the PCB feed board extends forward from the reflector
  • the radiating arm supporting plate is supported on the PCB feed board in an orientation substantially parallel to the reflector
  • the first arm segment of the radiating arm is supported on the radiating arm supporting plate in an orientation substantially parallel to the reflector
  • the second arm segment of the radiating arm extends from an outer side region of the first arm segment in a direction that is away from the reflector.
  • a base station antenna comprising a reflector and an array of radiators disposed on the reflector, wherein the radiator in the array of radiators is configured as the radiator according to the present invention.
  • FIG. l is a perspective view of a radiator according to a first embodiment of the present invention.
  • FIG. 2 is an exploded view of the radiator of FIG. 1.
  • FIG. 3 is a perspective view of a radiator according to a second embodiment of the present invention.
  • FIG. 4a is a perspective view of a radiating arm of the radiator of FIG. 3.
  • FIG. 4b is a perspective view of a radiating arm supporting plate of the radiator of FIG. 3.
  • FIG. 4c is a perspective view of a feed board of the radiator of FIG. 3.
  • the radiators according to embodiments of the present invention are applicable to various types of antennas, and may be particularly suitable for MIMO antennas.
  • the MIMO antennas typically have multiple arrays of radiators.
  • the arrays may be, for example, linear arrays of radiators or two-dimensional arrays of radiators. Only a single radiator in the array is shown below. It should be noted that in the discussion that follows, the radiators are described consistent with the orientation shown in the figures. It will be appreciated that base station antennas are typically mounted so that a longitudinal axis thereof extends in the vertical direction, and the reflector of the antenna likewise extends vertically. When mounted in this fashion, the radiators typically extend forward from the reflector, and hence are deflected about 90° from the orientations shown in the figures.
  • radiators for example, one or more arrays of low band radiators, one or more arrays of mid band radiators, and one or more arrays of high band radiators
  • the spacing between the radiators is reduced. This results in the isolation between different radiators, especially between dipoles of the same polarization (also referred to as Co-pol isolation) getting worse.
  • a principal challenge in the design of MIMO antennas is to improve the isolation between the radiators, especially the isolation between radiators of different arrays that operate at the same frequency, as this can affect the beam forming performance of the antennas.
  • FIG. l is a perspective view of the radiator 1 according to the first embodiment of the present invention
  • FIG. 2 is an exploded view of the radiator 1 according to the first embodiment of the present invention.
  • the radiator 1 may be constructed as a dual polarization dipole radiator 1 including two horizontally-extending dipoles, each dipole having two radiating arms 2 arranged at 180 degrees from each other. Further, the radiator 1 also includes a PCB coupling arm 3 and a feed board 4.
  • the radiator 1 is mounted on a reflector (not shown), the feed board 4 of the radiator 1 extends forward from the reflector and engages with the PCB coupling arm 3, and the PCB coupling arm 3 is supported on the feed board 4 in an orientation substantially parallel to the reflector.
  • Each of the PCB coupling arms 3 has a corresponding radiating arm 2 supported thereon.
  • the feed boards 4 may be constructed as a pair of printed circuit boards, that is, constructed as PCB feed boards.
  • the pair of printed circuit boards are oriented at an angle of 90° with respect to each other so as to have a cross-section in the form of an X.
  • a feed PCB board (not shown) may be mounted on the reflector, and a base of the feed board 4 may be mounted on the feed PCB board.
  • a feed circuit is provided on each printed circuit board of the feed board 4, and the feed circuit may provide respective signal paths from the feed PCB board to each respective pair of radiating arms 2.
  • the PCB coupling arm 3 may be constructed as a printed circuit board having a printed electrically conductive segment.
  • the PCB coupling arm 3 is not only configured to support the respective radiating arm 2, but also to feed (may also be referred to as“indirectly feed” herein), based on the electrical connection with the feed board 4, the radiating arm 2 by means of a capacitive coupling between the PCB coupling arm 3 and the radiating arm 2 supported thereon.
  • the radiating arm 2 may be constructed as a metal radiating arm, and may be constructed as a sheet metal (for example, a copper radiating arm or an aluminum radiating arm). As shown in FIGS. 1 and 2, the radiating arm 2 includes a first arm segment 201 and a second arm segment 202, wherein the first arm segment 201 is supported on the PCB coupling arm 3 in an orientation substantially parallel to the reflector, and the second arm segment 202 extends, preferably vertically, away from the reflector from an outer side region of the first arm segment 201. Two side edges of the first arm segment 201 are each provided with a second arm segment that extends away from the reflector.
  • the radiating arm 2 has one horizontally-extending first arm segment 201, and two second arm segments 202 that extend vertically forward from the outer side region of the first arm segment 201.
  • the first arm segment 201 and the second arm segments 202 of the radiating arm 2 may be constructed as a monolithic structure. This makes it possible to bend the metal radiating arm in a simple and cost- effective manner.
  • major surfaces of the radiating arms of the radiator 1 extend to a three-dimensional space. Based on the bended second arm segments 202, the radiation area of the radiating arm 2 may be effectively increased. In this way, the dimension of horizontal extension of the radiator 1 is advantageously reduced while maintaining the effective electrical length of the radiating arm, thereby enlarging the spacing between the adjacent radiators 1 and improving the isolation between the radiators 1.
  • the first arm segment 201 is placed directly on the PCB coupling arm 3, whereas the second arm segments 202 extend from the outer side region of the first arm segment 201 in a direction that is away from the reflector.
  • the ratio of the area of the first arm segment 201 to the area of the second arm segments 202 may be diverse, thereby able to well adapt to the actual application situations. Technicians may simulate various area ratios at the beginning of the design so as to perform a preliminary test on the function of the radiator 1, and may further make a flexible modification based on the test results.
  • the upper limit value of the ratio of the area of the first arm segment 201 to the area of the overall radiating arm 2 i.e. the sum of the area of the first arm segment 201 and the area of the second arm segments 202) is selected from the following values: 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2 or 0.1.
  • the area of the PCB coupling arm 3 is larger than the area of the first arm segment 201 of the radiating arm 2.
  • the area of the PCB coupling arm 3 may be smaller than the area of the first arm segment 201 of the radiating arm 2, that is, only a portion of the first arm segment 201 is disposed directly on the PCB coupling arm 3, and a capacitive coupling is formed between this portion of the first arm segment 201 and the electrically conductive segment of the PCB coupling arm 3.
  • the area of the PCB coupling arm 3 may be designed to be as small as possible.
  • the area of the PCB coupling arm 3 may be 0.8, 0.7, 0.6, 0.5, 0.4, 0.3 or 0.2 times the area of the first arm segment 201, such that the manufacturing cost of the radiator 1 can be reduced significantly.
  • this portion of the first arm segment 201 and the printed electrically conductive segment of the PCB coupling arm 3 (which is electrically connected with the printed electrically conductive segment of the feed board 4) are equivalent to two equivalent opposing metal plates of the capacitive coupling, and the solder mask layer on the surface of the PCB coupling arm 3 is equivalent to a dielectric layer of the capacitive coupling.
  • the area of the first arm segment 201 and/or of the PCB coupling arm 3 may be adjusted so as to change the effective overlap area of the coupling capacitor. It is also possible to provide a dielectric layer such as air and/or a spacer of other dielectric constants between the first arm segment 201 and the PCB coupling arm 3, to thereby change the dielectric constant and spacing of the coupling capacitor.
  • Most arrays of radiators 1 are designed to operate in at least portions of one or more of three wide frequency bands, that is, a low-band frequency range that extends from 617MHz to 960MHz, a mid-band frequency range that extends from 1690MHz to 2690MHz, and a high-band frequency range that extends from 3.3GHz to 5.8 GHz.
  • an ultra- wideband radiator is configured to operate in a wide-band frequency range that extends from approximately 1.4 GHz to 2.7 GHz.
  • the impedance matching can be achieved when the height of the feed board of the radiator 1 above the reflector reaches one quarter of the wavelength corresponding to a center frequency of the desired operating frequency range.
  • the upward extension of the second arm segment 202 is advantageous, because within these operating bands, the height of the feed board 4 is relatively small, and if the second arm segment 202 extends downward, the second arm segment 202 of the radiating arm 2 would be too close to the reflector below the radiator 1, thereby affecting the RF performance of the radiator.
  • the second arm segment 202 of the radiating arm 2 may also extend downward from the first arm segment 201.
  • the radiating arm 2 may also have only one first arm segment 201 and one second arm segment 202, and the shape of the first arm segment 201 and the second arm segment 202 may also be diverse.
  • a small coupling area between the PCB coupling arm and the radiating arm is enough to achieve effective coupling feed.
  • the radiating arm 2 may be mounted to the respective PCB coupling arm 3 by means of additional fasteners, for example, by means of plastic rivets. In other embodiments, any other fasteners may also be envisaged. It is also possible for the radiating arm 2 to be bonded to the respective PCB coupling arm 3 by means of an adhesive layer, in which case the adhesive layer may also be regarded as a dielectric layer of the capacitive coupling.
  • the radiator 1 may also include a director 8 for improving the pattern of the radiator 1.
  • a director support 9 is provided for supporting the director 6.
  • a receiving opening 10 is provided in the radiating arm 2 for fixing the respective director support 9.
  • the receiving opening 10 may also be provided in the PCB coupling arm 3.
  • FIGS. 3, 4a, 4b and 4c where FIG. 3 is a perspective view of the radiator G according to the second embodiment of the present invention, FIG. 4a is a perspective view of a radiating arm 2' of the radiator G of FIG. 3, FIG. 4b is a perspective view of a radiating arm supporting plate 3' of the radiator G of FIG. 3, and FIG. 4c is a perspective view of a feed board 4' of the radiator G of FIG. 3.
  • the radiator G may be constructed as a dual-polarization dipole radiator G including two horizontally-extending dipoles, each dipole having two radiating arms 2' arranged at 180 degrees from each other. Further, the radiator G also includes a radiating arm supporting plate 3' and a feed board 4'.
  • the radiating arm supporting plate 3' may, for example, be made of a dielectric material or comprise a dielectric material for supporting the respective radiating arm 2'.
  • the radiator G is mounted on a reflector (not shown), and the feed board 4' extends forward from the reflector.
  • the radiating arm supporting plate 3' is supported on the feed board 4' in an orientation substantially parallel to the reflector. Additionally or alternatively, the radiator G may also comprise a director (not shown in this embodiment), like the first embodiment according to the present invention, for improving the pattern of the radiator G.
  • the feed boards 4' may be constructed as a pair of printed circuit boards, that is, constructed as PCB feed boards.
  • the pair of printed circuit boards are oriented at an angle of 90° with respect to each other so as to have a cross-section in the form of an X.
  • a feed PCB board (not shown) may be mounted on the reflector, and a base of the feed board 4' may be mounted on the feed PCB board.
  • a feed circuit is provided on each printed circuit board of the feed board 4', and the feed circuit may provide respective signal paths from the feed PCB board to each respective pair of radiating arms 2'.
  • the radiating arm 2' may be constructed as a metal radiating arm, for example as a sheet metal (for example, a copper radiating arm or an aluminum radiating arm).
  • the radiating arm 2' comprises a first arm segment 20 G and a second arm segment 202'.
  • the first arm segment 20 G is supported on the radiating arm supporting plate 3' in an orientation substantially parallel to the reflector, and the second arm segment 202' extends from an outer side region of the first arm segment 20 G in a direction that is away from the reflector.
  • Two side edges of the first arm segment 20 G are each provided with a second arm segment 202' that extends away from the reflector. That is, the radiating arm 2' has one horizontally-extending first arm segment 20 G, and two second arm segments 202' that extend vertically forward from the outer side region of the first arm segment 20 G.
  • the radiating arms of the radiator G extend to a three-dimensional space. Based on the bended second arm segments 202', the radiation area of the radiating arm 2' may be effectively increased. In this way, the dimension of horizontal extension of the radiator G is advantageously reduced while maintaining the effective electrical length of the radiating arm, thereby enlarging the spacing between the adjacent radiators G and improving the isolation between the radiators.
  • the radiator G according to the second embodiment of the present invention is not additionally provided with the PCB coupling arm 3 for (indirect) coupling feed of the radiating arm 2'.
  • the feed board 4' feeds the radiating arm 2' (directly) by means of capacitive coupling. In other words, a direct coupling feed is created between the feed board 4' and the radiating arm 2'..
  • the radiating arm 2' comprises a coupling portion 203'.
  • the feed board 4' comprises a coupling portion 40 G having an electrically conductive segment.
  • the coupling portion 40 G of the feed board and the coupling portion 203' of the radiating arm are configured to be opposite to each other, preferably in a parallel manner, thereby forming the capacitive coupling therebetween to feed the radiating arm 2'.
  • each of the radiating arms 2' may have a coupling portion 203', which extends vertically from the inner end of the radiating arm 2' in a direction that is away from the reflector.
  • the feed board 4' has, on its upper inner end, a coupling portion 40 G that extends forward, and each coupling portion 40 G of the feed board corresponds to a coupling portion 203' of the radiating arm.
  • the radiating arm supporting plate 3' comprises a slot 30G, and the coupling portions 40G of the feed board are inserted through the corresponding slots 30 G so that the coupling portion 40 G of the feed board and the respective coupling portions 203' of the radiating arms are configured to be opposite to each other, preferably in a parallel manner.
  • the coupling portion 203' of the radiating arm and the printed electrically conductive segment of the coupling portion 40 G of the feed board are equivalent to two equivalent opposite metal plates of the capacitive coupling
  • the solder mask layer on the surface of the coupling portion 40 G of the feed board is equivalent to a dielectric layer of the capacitive coupling (the dielectric layer can prevent direct electrical contact between the coupling portion 203' of the radiating arm and the coupling portion 40 G of the feed board, effectively reducing passive intermodulation).
  • the area of the coupling portion 203' of the radiating arm and/or of the coupling portion 40G of the feed board may be adjusted so as to change the effective overlap area of the capacitive coupling.
  • each of the radiating arms 2' may be provided with two coupling portions 203', both of which, spaced apart at a distance from each other, extend vertically from the inner end of the radiating arm 2' in a direction that is away from the reflector.
  • the feed board 4' is provided, on its upper inner end, with coupling portions 40 G that extend vertically forward, and each coupling portion 40 G of the feed board is likewise inserted through the slot 30G in the radiating arm supporting plate 3' so that the coupling portion 40 G of the feed board is located at the interval between the two coupling portions 203' of the radiating arm to thereby form a dual-capacitor coupling.
  • the coupling portion 40 G of the feed board located between the two coupling portions 203' of the radiating arm comprises printed electrically conductive segments on its two major surfaces.
  • one or more electrically conductive elements such as via holes, may be provided through the two major surfaces of the coupling portion 40 G of the feed board so as to electrically connect the printed electrically conductive segments on the two major surfaces.
  • the radiating arm supporting plate 3' has a slot.
  • the slot is configured as the slot 30G described above. In other embodiments, they may be provided separately.
  • the radiating arm 2' has a slot 204' corresponding to the slot 30 G of the radiating arm supporting plate 3'
  • the feeding board 4' includes a snap portion 402' formed only of a dielectric material (i.e., a PCB base material), and the snap portion 402' is inserted through the slot 30G of the radiating arm supporting plate 3' and the slot 204' and snapped onto the radiating arm 2' to thereby achieve the fixation between the radiating arm 2', the radiating arm supporting plate 3' and the feed board 4'.
  • the radiator G may further comprise an additional fastening structure, which is configured to further restrict the relative movement therebetween.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

Un radiateur pour une antenne comprend une carte d'alimentation et un bras rayonnant métallique. La carte d'alimentation comprend un segment électriquement conducteur, par l'intermédiaire duquel la carte d'alimentation alimente le bras rayonnant métallique au moyen d'un couplage capacitif. Le bras rayonnant comprend un premier segment de bras s'étendant dans une première direction, et un second segment de bras s'étendant à partir d'une région latérale externe du premier segment de bras dans une seconde direction différente de la première direction.
EP20783335.1A 2019-03-29 2020-03-17 Radiateur pour antenne et antenne de station de base Withdrawn EP3949019A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910246296.8A CN111755806A (zh) 2019-03-29 2019-03-29 用于天线的辐射器和基站天线
PCT/US2020/023106 WO2020205225A1 (fr) 2019-03-29 2020-03-17 Radiateur pour antenne et antenne de station de base

Publications (2)

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EP3949019A1 true EP3949019A1 (fr) 2022-02-09
EP3949019A4 EP3949019A4 (fr) 2022-11-30

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EP (1) EP3949019A4 (fr)
CN (1) CN111755806A (fr)
WO (1) WO2020205225A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102424647B1 (ko) * 2020-09-21 2022-07-26 주식회사 에이스테크놀로지 기지국 안테나용 저손실 광대역 방사체

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215968A (en) * 1960-12-21 1965-11-02 Adolf L Herrmann Printed circuit board connector
US4677521A (en) * 1986-05-19 1987-06-30 Frazier Thomas G Static dissipative grounding strap
US5712607A (en) * 1996-04-12 1998-01-27 Dittmer; Timothy W. Air-dielectric stripline
US8288266B2 (en) * 2006-08-08 2012-10-16 Endicott Interconnect Technologies, Inc. Circuitized substrate assembly
US7322833B1 (en) * 2006-10-31 2008-01-29 Flextronics Ap, Llc Connection of FPC antenna to PCB
CN101673881A (zh) * 2009-10-16 2010-03-17 京信通信系统（中国）有限公司 宽频双极化阵列天线及其平面振子
KR101711150B1 (ko) * 2011-01-31 2017-03-03 주식회사 케이엠더블유 이동통신 기지국용 이중편파 안테나 및 이를 이용한 다중대역 안테나 시스템
US20140028516A1 (en) * 2012-07-25 2014-01-30 Kathrein, Inc., Scala Division Dual-polarized radiating element with enhanced isolation for use in antenna system
CN103633426B (zh) * 2013-12-06 2016-06-22 华为终端有限公司 天线结构和移动终端设备
JP5872018B1 (ja) * 2014-12-19 2016-03-01 電気興業株式会社 偏波共用アンテナ装置
US10916828B2 (en) * 2015-01-14 2021-02-09 Commscope Technologies Llc Radio antenna element arm retaining clip
EP3166178B1 (fr) * 2015-11-03 2019-09-11 Huawei Technologies Co., Ltd. Élément d'antenne de préférence pour une antenne de station de base
WO2017165512A1 (fr) * 2016-03-24 2017-09-28 Commscope Technologies Llc Antennes de station de base modulaires
CN107275808B (zh) * 2016-04-08 2021-05-25 康普技术有限责任公司 超宽频带辐射器和相关的天线阵列
EP3232504B1 (fr) * 2016-04-12 2020-09-09 Huawei Technologies Co., Ltd. Élément rayonnant à double polarisation et bande ultra large pour antenne de station de base
US11069959B1 (en) * 2016-05-06 2021-07-20 Commscope Technologies Llc Monolithic radiating elements and feedboard assemblies for base station antennas formed via laser direct structuring and other selective metallization techniques
WO2019010051A1 (fr) * 2017-07-07 2019-01-10 Commscope Technologies Llc Éléments rayonnants à bande passante étroite à largeur de bande ultralarge
EP3669421A1 (fr) * 2017-09-12 2020-06-24 Huawei Technologies Co., Ltd. Élément rayonnant à double polarisation et antenne
CA3077588A1 (fr) * 2017-10-04 2019-04-11 John Mezzalingua Associates, LLC Radiateur a filtre integre pour antenne multibande
US20190123443A1 (en) * 2017-10-19 2019-04-25 Laird Technologies, Inc. Stacked patch antenna elements and antenna assemblies
KR102342978B1 (ko) * 2018-01-19 2021-12-24 삼성전자 주식회사 절연체를 포함하는 안테나 모듈 및 이를 포함하는 기지국
WO2019236085A1 (fr) * 2018-06-07 2019-12-12 Hewlett-Packard Development Company, L.P. Modules frontaux à fentes de plan de masse
CN112335120B (zh) * 2018-06-29 2023-09-19 上海诺基亚贝尔股份有限公司 多频带天线结构
US11095035B2 (en) * 2019-02-14 2021-08-17 Aeroantenna Technology, Inc. Broad band dipole antenna

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Publication number Publication date
WO2020205225A1 (fr) 2020-10-08
US20220190470A1 (en) 2022-06-16
EP3949019A4 (fr) 2022-11-30
CN111755806A (zh) 2020-10-09

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